Printing-telegraph instrument



(No Model.) 4 Sheets-Sheet 1. A. WIRSOHING. PRINTING TELEGRAPHINSTRUMENT.

No. 354,001. Patented Dec. 7, 1886.

} WITNESSES 4 efiww INVENTOR fig ATTORNEYS 4 Sheets-Sheet 2.

(No Model.)

A. WIRSGHING.

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WITNESSES 4 0754M N. PETERS WWW. WaNngmn, D. C,

(No Model.) 4 Sheets-Sheet a, A. WIRSCHINGI PRINTING TELEGRAPHINSTRUMENT.

No. 354,001. Patented Dec. 7, 1886.

WITNESSES: INVENTOR 2% %&M M W fla BY 7M ATTORNEYS 1 (No Model.) 4Sheets-Sheet 4.

A. WIRS-GHING. PRINTING TELEGRAPH INSTRUMENT. No. 354,001. Patented Dec.7, 1886i WITNESSES.-

ATTORNEYS UNITED STATES PATENT OFFICE.

ALOYS \VIRSOHING, OF BROOKLYN, NEXV YORK.

PRINTI NG=TELEGRAPH INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 354,001, dated December7, 1886.

Application filed July 10, 1886.

.To aZZ whom it may concern.-

Be it known that 1, Atom Museums, of Brooklyn, county of Kings, andState of New York, have invented certain new and useful Improvements inPrinting-Telegraph Instruments, of which the following is aspecificat-ion.

This invention relates to improvements in that class ofprinting-telegraph instruments in which two type-wheels are employed andimpressions from either one of the same produced at the will of theoperator at the transmitting-station. The invention relates moreespecially to certain improvements in the printingtelegraph for whichLetters Patent were granted to me, No. 286,667, dated October 16, 1883,said improvements being designed with a view to simplify theconstruction of the instrument and to cause all the instruments in onecircuit to respond in a more reliable and effective manner to themessages sent from the transmitting-station.

The invention consists of a printingtelegraph instrument in which twoescapement magnets are arranged in multiple are by placing them in asplit circuit, while the printingmagnet is arranged in series or singlecircuit with reference to the escapement-magnets, by which arrangementthe entire strength of the current is transmitted to theprinting-magnet, while the resistance of the escapementanag nets isdiminished.

The invention consists, secondly, of a simple and effective constructionofthe unisonlever and its connection with the armature of theprinting-magnet and the stop-arm on the arbor of the escapement-wheel,and, lastly, in a stop device for the double impression pad, by whichany axial change of position of the same when the printing-lever is atrest is'reliably prevented.

1n the accompanying. drawings, Figure 1 represents a p an view of myimproved print ing-telegraph instrument. Fig. 2 is a verticallongitudinal section of the same on the line :10 m, Fig. 1. Fig. 2 is adetail side view of the unison-lever, showing it in a position forstopping the escapement-wheel and bringing the instrument into unison.Fig. 3 is a side elevation of my improved instrument, partly in SerialNo. 207,678. (No model.)

section, through the auxiliary casin Fig. 3 is a detail side view of thestop device for the impression-pads. Fig. 4 is a diagram illus-' tratingthe course of the current through the escapement and printing magnets,and Fig.4 is a side view of a modified construction of the unison-levermechanism.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the supporting main casing, andA the auxiliary casing, of my improved printing-telegraph instrument.

B is the arbor of the escapement-wheel B, which is driven by anysuitable mechanism such as a train of gear-wheels actuated by a weightsuspended on a cord running over a drum, as shown in Figs. 1 and 2.

G and D are two horseshoe electro-magnets which are arranged one abovethe other, and E a permanent horseshoe magnet located in front of theelectro-magnets O and D.

To the poles of the permanent elcetro-magnet E are pivotedlateral]y-extending pieces or tongues E,ofsoft iron,which are connectedby a bridge, 8, of non-magnetic material, and extended between the polesof the electromagnets O and D, so as to constitute there with aso-called double polarized armature. One of the tongues E is influencedby one of the poles of the upper and one of the poles of the lowerclectro magnet, while the other tongue isinfiuenced by the remainingpoles of the two electro-magnets O and D. From the transverse bridge 0of the tongues E extends in opposite direction the escapement-lever E,that engages by pallets e e the teeth of the escapementwheel B, ascustomary in printingtelegraph instruments.

H is the printing electro-1nagnet,and H the armature ot' the same, whichis attached to the arbor h of the printing-lever I. The course of thecurrent by which the escapementmagnets and printing-magnet are energizedis shown in diagram, Fig. 4, in which the escapement-magnets are locatedin a horizontal plane in place of a vertical plane, so as to facilitatethe explanation. The current enters alternately through thebinding-posts a a. according as a current of positive or negativepolarity is sent through the instrument from the transmitter. When thecurrent enters at the binding-post a,it passes along the connection Z,and is then split into two currents, which pass through the coils ofthe'electromagnets O and D, which are wound with fine wire. The splitcurrents, after leaving the coils of the electro-magnets O and D, areconducted, respectively, by the wires 3 and 4to the wire 5, whichconducts the united current to the printing magnet H, that is wound withcoarser wire. From the printing-magnet the current passes over wire 6 tothe binding-post a, and from the same either to the ground or over theline-wire to the second instrument, and so on. It will thus be seen thata direct connection of the elect'ro-magnets of each instrument is madewith the line-wires, without the use of anycircuit-breakingdevices,whereby the construction is simplified and thecircuit interfered with to a less extent than when the circuit-breakingdevice shown in my prior patent is used. By splitting the current beforeit passes into the escapement-magnets the latter are placed in multipleare, while theprinting-magnet is placed in series, by which the fullstrength of the current is exerted on the printing-magnet whenever asignal has to be printed, while sufficient force is exerted on theescapement-magnets to actuate the escape- Inent-lever andescapement-wheel to perform their proper functions.

.ment-wheel B, and adapted to oscillate be-' To the axis h of theprinting-lever I is applied an arm, 6, which extends in oppositedirection to the armature H, and which is connected to a spiral spring,6, that is attached to the side wall of the main casing A, and whichserves as the adjusting-spring of the armature H. The arm 1' bearsagainst a pin, 1', of a lever, F, that is pivoted at its opposite end tothe sidewall of the main casing A.

. To the pivoted lever F is fulcrumed, near the pin i a second lever, F,one end of which is connected to a spiral spring, 6 while the oppositeend is extended alongside of the pivoted lever F, toward the arbor ofthe escape tween fixed stop-pins i, one on each side of said lever, asshown respectively in Figs. 1, 2, and 2. A third stop-pin, i is locatedabove thatend of the fulcrumed leverF to which the spiral spring 2' isconnected.

To the hub of the fulcrumed lever F is attached a downwardly-extendingresilient arm, 2', which is engaged by the spurs of a minutelytoothedwheel, 13, located on one of the intermediate shafts of thedriving-train of gear- Wheels. By the turning motion of the spurwheel t"the resilient arm 2' is carried along, and thereby the lever F turned onits fulcrum 6 f, so that the arm located between the stoppins i islowered and placed into the path of the unison-stop f on the arbor B ofthe escapement-wheel-B. When the unison-stopf arrives at the end of thefulcrumed lever F, as shown in Fig. 2, the escapement-wheel B isarrested. If the armature H of the printing-magnet is attracted, whilethe escapementwheel 13 is thus stopped, the arm t of the armature 11engages the pin 1' at the outer end of the pivoted lever F and lifts thesame, together with the lever F; but as simultaneously with this liftingmotion the adjoining end of the lever F abuts against the stoppin i thelever F will be retained, while the lever F will be lifted; consequentlythe levers F F are spread apart like the blades of a pair of scissors,so that the end of the lever F between the stop'pins i is lifted andmoved out of the path of the unison-stop, permitting thereby theescapement-wheel to continue its step-by step rotary motion.

In place of the resilient arm 2', a minutelytoothed segment, i, may beused, which is attached to the hub of the lever F, and which mesheswiththe correspondingly-toothed spurwheel "a" on the arbor of one of theintermediate transmitting-wheels, as shown in Fig. 4 By the lifting ofthe lever F the resilient arm i or the segment 2" is also lifted, so asto clear the teeth of the spur-wheel i and be returned again into meshwith the latter when the'lever F is released by the dropping of thearmature H. In case the unison-lever F is lowered and arrives at thelowest stop-pin before the stop-arm on the axis of the escapement-wheelcomes around, the resilient arm i will give sufficiently and pass overthe teeth of the spurwheel without changing its position. In case thesegment i is used, it will be slightly lifted, together with the leversF F, so as to clear the teeth of thespur-wheel, but without changing itsposition of contact with the lower stoppin, 2'.

, The unison mechanism described is of simple construction and verypositive in action, as by the lifting of the levers F F by the arm ofthe armature of the printing-magnet the resilient arm or its equivalentthe toothed segment,is bodilylifted and taken out of mesh with themotion-transmitting spur-wheel and returned into mesh with the same, bythe action of the spiral spring iflwhen thelevers are returned intotheir normal position. (Shown in Fig. 2.) I

The arrangementof the printing-lever, type wheels, and the doubleimpression pads provided with alternating teeth or impressionsurfaces,together with the mechanismfor feeding the paper and actuating thedoubleimpression pad, are fully described in my prior patent referredto, and need no special description in this connection. Thedouble-impression pad, however, was liable to be shifted outof itsproper relative position to the typewheels when strain was exertedthereon in taking up and pulling the tape on which the quo IIO sionbetween a tooth of the front part andthe next adjoining tooth ofthe rearpart of the impression-pad. When the printing-lever I is raised forprinting, the teeth of theimpression-pad G clear the stop-pin 9, while,when the printing-lever is lowered, the stop-pin enters into the spacebetween the adjoining teeth of the impression-pad and checks the latter,so that no change of position can take place, even when the tape onwhich the type-Wheels have printed is pulled with considerable force orstrain in reading the quotations or news printed on the tape. Thestop-pin g prevents the turning of the impression-pad on its axis whenthe printing-lever is in a position of rest, and retains it in itsproper relative position to the type-wheels. From the foregoing it willbe readily seen that by the improved arrangement of theescapement-magnets in multiple arc and the printing-magnets in series tothe former they perform their functions in a more accurate and reliablemanner, so as not to in terfere with the line and the other instrumentsin the same circuit,and produce the reliable printing of the messagessent over the circuit.

The simplified construction of the unisonleverproduces the more accurateand reliable action of the same, so that all the instruments in onecircuit are made to work in unison, while the stop device of thedouble-impression pad prevents any change in the position of the samewhen the printing-lever is at rest and holds the impression-pad inproper relative position to the type-whee1s.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a printing-telegraph instrument, thecombination, with two escapementmagnets arranged in multiple are, of aprintingmagnet arranged in series with reference to the former,substantially as set forth.

2. In a printingtelegraph instrument, the combination of twoelectro-magnets located vertically one above the other, a permanenthorseshoe-magnet located in front of the electro-magnets, anescapement-lever pivoted to the poles of said permanent magnet andprovided with soft-iron tongues extending be tween the poles of theelectro-magnets, an escapement-wheel engaged by said lever, and meansfor actuating said escapement-wheel, substantially as set forth.

3. In a printing-telegraph instrument, the combination, with theescapementwheel and its arbor'having a stop-arm, of a printing magnetand a unison mechanism operated by the armature of the printing-magnetand composed of two levers, one pivoted to the casing of the instrumentand the other fulcrumed to the pivoted lever, a spur-wheel on one of thearbors of the actuating mechanism of the escapement whcel, a device bywhich the fulcrumed lever is connected with said spurwheel, andstop-pins for said fulcrumed lever, substantially as set forth.

4. In a printing-telegraph instrument, the combination of theescapement-magnets, an escapement-lever operated by the same, anescapementwheel having a radial stop-arm, means for actuating saidescapement-wheel, a printing-magnet, an armature actuated by the same, aunison mechanism operated by the armature of the printing-lever andcomposed of-a lever pivoted to the casing of the instrument, a secondlever fulcrumed to the first 1ever, and a resilient arm attached to thefulcrumed lever, a spur-wheel on one of the arbors of themotion-transmitting mechanism of the escapement wheel, stop pins betweenwhich one end of the i'ulcrumed levers is oscillated, and a stop-pin bywhich the opposite end of the same is arrested, substantially as setforth.

5. In a printing-telegraph instrument, the combination of aprinting-lever having a double-impression pad with alternating teeth,with an adjustable stop-pin that projects into the space or depressionbetween two adjoining teeth of the double pad, substantially as setforth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

ALOYS WIRSGHING. lVitnesses:

PAUL GOEPEL, SIDNEY MANN.

